We report on CPA-free multipass amplification of ps-pulses in Holmium-doped yttrium lithium fluoride (Ho:YLF) crystals up to µJ pulse-energy-covering repetition rates from 10 kHz up to 500 kHz. PRP is the time from the start of one pulse, to the start of the next pulse. pulse repetition period, A sonographer is using a 3 MHz transducer and increases the output power to visualize structures that are positioned deeper in the patient. Increasing the frequency decreases the period. What is PRF in radar? 8 s B. true or false. If all other factors remain the same, what happens to duty factor if the sonographer changes to a transducer with a longer pulse duration? T or F: the sonographer cannot change the duration of a sound pulse unless the transducers are switched. A. We typically measure PRI as the time from the beginning of one pulse and the beginning of the next. It covers the fundamental science, signal processing, hardware issues, systems design and case studies of typical systems. While using a particular imaging system, what happens to the duty factor when the depth of view increases? Would each of the parameters increase, decrease or remain the same? frequency, A sonographer is using a 3MHz transducer and changes to a 6 MHz transducer. Would each of the following parameters increase, decrease or remain the same? Pulse repetition period (PRP): Time from the beginning of one pulse to the beginning of the next. Which of the following four waves has the lowest pulse repetition frequency? The other three are associated with deep imaging. 1. the sonographer alters the duty cycle when adjusting the maximum imaging depth of a scan, true or false. Study pulse sequences flashcards from William Kerns's Lake Michigan College class online, or in Brainscape's iPhone or Android app. As imaging depth increases, pulse repetition period (PRP) increases ↑ Imaging Depth ↑ PRP. Would each of the following parameters increase, decrease or remain the same? Which of the following four waves has the lowest pulse repetition frequency. By increasing the pump power, the transition from a single DSR pulse to multiple DSR pulses was observed, in addition to the typical linear pulse broadening, under a fixed pulse peak power. Cram.com makes it easy to get the grade you want! Pressure, Density, Temperature and Particle Motion. T or F: Two waves can have identical pulse repetition frequencies, even if their pulse repetition periods are different. Two transducers send ultrasound pulses into soft tissue. 1-9 exam questions at Cram.com. Pulse Repetition Period & Pulse Repetition Frequency (PRP & PRF) Pulse Repetition Period Pulse Repetition Period Components of PRP: Definition: the transmit time or on time (aka pulse duration) the receiving time or off time Pulse repetition period is the length of time from the Increase the pulse duration C. Increase the operating frequency D. Increase the power: C. Increase the operating frequency: What is the best estimate of axial resolution? 3. The wave is then pulsed with a duty factor of 0.5. Pulse Repetition Frequence (PRF) is the number of _____ occuring in 1 second. period, A sonographer adjusts the depth view of an ultrasound scan from 8 cm to 16 cm. C. 6 Hz: pulse repetition period is the reciprocal of pulse repetition frequency. Would each of the following parameters increase, decrease or remain the same? The imaging depth remains unchanged. False: two waves can never have identical PRFs if their pulse repetition period are different, T or F: Two waves can have identical PRFs even if their periods are different, True. true or false. 80 µs. C. The duty factor has a value close to 1. remains same A sonographer is using a 3 MHz transducer and increases the output power to visualize structures that are positioned deeper in the patient. 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